The heart specialist driving an Australian-first cardiology "clinic on wheels" program says the service is saving lives in regional Queensland and should be expanded.

Dr Rolf Gomes said that, six months on from the launch of the Heart of Australian initiative, the statistics proved the outreach project was working.

"We've managed to conduct 55 clinics," he explained.

"We've seen in excess of over 1,200 patients.

"And I'm very glad to say we've actually highlighted close to 50 patients who have had potentially life-threatening cardiac conditions who've been successfully treated and can now get on with their lives."

He now wanted to see the program extended to offer a range of other medical services.

"If we could do it with cardiologists, the question I ask is 'can we afford to stop?'

"Why not other specialities ... why not diabetes, why not kidney disease, why not respiratory disease?"

Currently, those living in rural and remote areas of Australia are 44 per cent more likely to die from heart disease than their city-dwelling counterparts, a figure Dr Gomes described as "embarrassing".

"Much of that has to do with access to services," he said.

"What we've demonstrated is that this issue of not being able to get specialists out in the bush, something that was thought to be impossible in the past, is in fact very possible with the model we are currently piloting."

The public-private Heart of Australia partnership, which began running clinics in five south-west Queensland towns last October, has now grown to cover a 7,000-kilometre circuit each month.

It sees the specially equipped million-dollar semitrailer, accompanied by some of the State's top cardiac surgeons, travel to 10 communities from Goondiwindi, on Queensland's southern border, north to Hughenden.

Dr Gomes said with running expenses tipped to hit the $2 million mark by the end of program's first 12 months, he was working to attract further financial support to continue the service and fund additional clinics.

"I'd love to have the means to have another truck," said Dr Gomes.

"I'm hoping now that we've got the runs on the board, we've got the numbers to say that we've been effective, that governments do support the program."

The 'Heart of Australia' is heading for rural and regional areas of Queensland.